Xenia will grow in about any situation, just give then time to adjust. They might not flourish like weeds but will do well! They are some of my favorite softies. Beautiful to watch and my clowns love them!
I use them as a tank nitrate indicator... When the population explodes, I know I have a nitrate problem! They do fine at a wide variety of nitrate levels, but really go wild at higher ones.
My nitrate is always 0, my xenia are doing well, but hardly reproduce. I got 4 stalks from Kayla in early May, now 3 months have passed and I have 6 stalks.